Grain-binder.



"PATBNTED DEC. 84 1903.

o. A. A. RAND. GRAIN BINDER.

APPLICATION FILED MAY 25, 1903.

Aa SHEETS-SHEET 1.

N0 MODEL.

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No; 746,155. ,PATENTBD 1330.8, 1903. C.A.A.RAND. GRAIN BINDEILQAPPLICATION FILED MAY 25, 1903.

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we Noms creas co. Hom e mxo.. wAsmNGmm No. 746,155. PATENTEDDBG.'8;15903..

I C..A. A. RAND.

GRAIN BINDER.

APPLICATION FILED MAY 25.- 1903.

N0 MODEL. 3 SHEETS-SHEET 3.

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"mi Nonms PETERS co., Pnnw'urlo., wAsHxNcTnN. o. c.

- UNITED STATES No. I l I Patented December 8, 1903.

PATENT OFFICE. I

CHARLES A. ANDERSON RAND, OFI CHICAGO, ILLINOIS, ASSIGNOR TOVINTERNATIONAL HARVESTER COMPANY, A CORPORATION OF NEW JERSEY.

GRAIN-smetta.

SPECIFICATION 'forming part of Letters Patent No. 746,155, datedDecember 8, 1903- Application filed May 25, 1903.

.To w53 whom it may concern:

Be it known that I, CHARLES A. ANDERSON RAND, a citizen of the UnitedStates, residing at Chicago, in the county of Cook and State ofIllinois, have invented a certain new and useful Improvement inGrain-Binders, of which the following is a complete specification. Y

This invention relates to the driving and tripping mechanism ofgrainbinders,- and more specifically to the construction of thedriving-dog on the clutch-gear.

Grain-binders as usually 'built are open to the evils arising from aconstruction which makes it necessary to bring the moving members to asudden stop after each operation, and consequently the diificulty ofdriving the various elements completelyy and positively to their lockedpositions and at the same time to effect the disengagement of theintermittentlymoving from the constantlymoving parts.

The object of this invention is to avoid the above-mentioned evils by soconstructing certain parts that the binderwill be driven home positively'without jar and the driving-'dog will be readily disengaged from itsdriving member. l

A further object of the invention is to provide means for automaticallycompensatingj ing-dog in the binder-driving inechanismfor 1 a singledog, asheretofore used, the two parts being yieldingly held andmovablewithin limits with respect to each other and with respect to themember upon which they are mounted.

One of the chief virtuesof this invention lies in the fact that theabove-mentioned yielding pawl will permit the moving parts of the binderto be carried slightly beyond their normal locking position, and thespring which actuatessaid'pawl will operate toreturu them to theirnormal position andalso tend to hold the driving-dog in a non-engagingposition. In the drawings, Figure 1 represents an end View of agrain-binder embodying my invention. Fig. 2 is a fragmentary elevationof the same. Fig. 3 is an elevation of the binderdriving dog and thetrip-stop-engaging pawl 'serial No. 158,595. (No-model.)

the relative positions of the parts before be-V ing assembled. Fig. 9 isan end elevation of a binder, largely diagrammatic, intended Vtoillustrate the action and relative positions of the binder-driving dogand trip-stop-engaging pawl in connection with the roller on thecompressor-lever and cam on the cam-gear, `this view showing the severalparts in a position slightly past their normal locking po! sitions. Fig.10 is a view similar to the one shown in Fig. 9, but with the partsreturned to their normal locked positions by the action of the yieldingtrip-stop-engagihg pawl. Fig.

11 is a diagram showing the relative location of the pivotal axes of thedriving-dog,the

pawl, and point of attachment of' the spring. l

Fig. 12 `illustrates a modified form of the pivotal support of rthedrivingdog and trip-stop-` engaging member, the driving-dog being.

shown in an engaging position relative to the binder-driver. Fig. 13represents'a similar View, but the driving dog shown in-a non-engagingposition relativeto the binder-driver. Referring to the draWings,Adesignates the rframe of a well-known type of grain-binder,

fand o, and a' portions of the upper and lower limbs, respectively,thereof.

B represents the binder-driving shaft; C, `the needle rock-shaft; D, thecam-gear shaft, and E the compressor rock-shaft. l

Fis the bevel-gear shaft driven through the bevel-gear f thereon, thebevel-gear meshing with and being intermittently driven by theclutch-gear B', which sleeves loosely upon the binder-driving shaft B.,j

On the upper end of the bevelgear shaft Fis secured the bevel-pinion f',meshing with and driving the cam-gear D', which is secured to thecam-gear shaft D. The camgear lis providedmwith the cam d, vupon whichrides the rollerh of the compressor-arm H, the said compressor-armconnecting with the Ioo compressor-link h through the compressorspring71,2. The lower end of the compressorlink engages with the cranked endof the compressor rock-shaft E,andl in this way actuates the saidcompressor crank-shaft in a manner well understood. The needlerock-shaft C is controlled by means of the connecting-rod d', extendingfrom the cam-gear D to the cranked end c of the said needle-shaft.

Pivotally mounted upon the needle rockshaft is the trip-stop G, heldyieldingly relative thereto by the spring g, which is engaged by a boltg", passing through a lug on said trip-stop and pivotally connected tothe arm c of the needle-shaft, as shown in Fig. 1. The trip-stop G isprovided with a suitable end g2 for engaging the dog on the gearclutchmechanism, which will hereinafter be described. Integral with thetrip-stop is the arm g3, adapted to be engaged and actuated by the footh5 on the lower end of the compressor-li nk h. B2 is the binder-driverrigidly secured to the binder-driving shaft B, and b represents therollers through which motion is communicated from said binderdriver tothe gear-clutch.

The clutching mechanism, which constitutes the essential element of thisinvention, will now be described. As the parts of the binder abovementioned are of present importance only in so far as they areassociated with and consequently aect or are aected by the clutchingmechanism, the general description given will su'ce.

On turning to Fig. 3 will be seen in dotted lines the clutch-gear B andin connection therewith the driving-dog I and the trip-stopengaging pawlJ. The driving-dog I is pivotally and eccentrically mounted upon thedriving-clutch B', the pivotal bearing being formed by the pin b'. (SeeFigs. 3 and 6.) The trip-stop-engaging pawl J is pivotally mounted,preferably upon this driving-dog I, the aperture i in said dog receivingthe pinj onthe pawl J. This arrangement oi the pivotal bearing of thepawl upon the driving-dog, it is to be noted, is by preference merely,since it is evident that similar results could beattained should thetrip-stop-engaging pawl be sleeved upon the gear-cln tch ordriving-shaft and the driving-dog sleeved either upon the gear-clutch orupon the pawl itself. Figs. 12 and 13 illustrate such a modified form ofthe pivotal supports of the driving-dogand tripstop-engagingmemberthereof. In its modified or alternate construction thetrip-stop-engaging member J of the driving-dog is pivoted upon theclutch-gear B' instead of on the driving-dog I' and the driving-dog I'in this case being pivotally mounted upon the member J. The principle ofthe operation in this case is the same as in the preferred construction,as heretofore set forth. The stops '10 and @'20 limit the vibratorymovement of the trip-stop-engaging member J relative to theclutch-gearwB, and the stops 1130 and 2210 limit the movement of thedriving-dog I' relative to member J', on which it is mounted. The springK acts upon the two parts of the driving-dog in this construction thesame as in the other, the part inarkedj", corresponding with js in theother ligures, engaging the tripstop Gr.

The driving-dog I receives the pawl J, the tw'o members occupying therelative positions in engagement as indicated by their detached views inFigs. lLand 5 or in Figs. 7 and 8. The stops rl and 112 on saiddriving-dog limit the vibratory movement of the pawl J relative to saiddriving-dog, the edge marked j on said pawl contacting the stop It" whenin the forward position and the rear edge thereof (marked j2) contactingthe stop 2in its rearward position. The end js of the pawl J is adaptedto contact the portion g2 of the trip-stop G. A spring K, having one ofits ends secured to the clutch-gear B at the point 7a and the other endengaging the trip-stop pawl J at the point Zc, exert-s a stress actingupon the said pawl in the direction of a line passing through the pointsof the attach mentspring. The relation of the points of attachment ofthe spring to the pawl-and-clutch gear, the location of the pivotal axisof the driving-dog on the clutch-gear, and the pawl on the driving-dogare of such a nature that when no resistance is interposed in the pathof the pawl the spring K operates to hold the driving-dog I in what maybe regarded as its forward position, which is an engaging positionrelative to the binder-driver, the beak is of said driving-dogcontacting the hub of said clutch-gear, as shown in Fig. 3, and thelipped portion 4 being engaged by the rollerbon the binder-driver B2;but should resistance be interposed in the path ofthe trip-stop-engagingpawl, as occurs when the trip-stop intercepts its path, the spring Kwill operate to hold the driving-dog in a nonengaging position relativeto the binderdriver, as is shown in Figs. l, 9, and l0, in whichposition the lip 4 is held away from the path of movement of thebinder-driver. A location of the pivotal point-s as indicated by Fig. 11will give the desired results. In this figure, 1 designates the centerof the clutch-gear; 2, the pivotal center of the driving-dog; 3, thepivotal center of the pawl on said driving-dog; 4, the point ofattachment of the spring to the clutch-gear; 5, the point of attachmentof the spring to the pawl, and 6 the point of application of resistanceto the pawl. It will be seen from this diagram that, assuming theresistance of the force P (the trip-stop) to be removed and the line 2 3(the driving-dog) fixed relative to the line 3 6, (the pawl,) a force L(the spring) acting along the line 4E 5 and in the direction indicatedby the arrow will cause rotation of both said lines 2 3 and 3 6 to theleft or forward, viewed in the light of the direction of rotation of theparts which they represent. Il", however, the force P (the trip-stop) isinterposed at the point 6 and the lines 2 3 and 3 6 dently causerotation of the line v2 3 (thedriving-dog) in the opposite direction, asindi-v cated by the line and arrow leading from 3.

@This will bring the dog to a non-engaging po- "fsi'tion' relative tothe binder-driver, as rethe trip-stop.l

qlid whenever the pawl is interceptedv by Other'tarrangementsfof thepoints 2, 3, 4, and 5 couldbe devised to produce the same result, andthieaabove is merely intended to be illustrative hiftthe preferredarrangement. The operation ofthe device will readily be is actuated through the compressor rock-shaft E, the foot h3 on the compressor-link hpresses the arm gs of the trip-stop until the portion g2 thereon israised and releases the trip-stopengaging pawl J. Immediately upon therelease of this pawl the spring K throws both the' said pawl and thebinder-driving dogI to the left or forward, the portion j on the pawlcontacting the stop 'i' on the dog and the beak 'is on the dog restingagainst the hub of the clutch-gear B.` This movement will cause the lip4 onthe driving-dog to be thrown outward and into the path of therollers b of the constantly-rotating binder-d river B2. Motion is thuscommunicated to the clutch-gear B', which, beingin mesh with thebevel-gearf, will impart motion through it, the bevel-gear shaft F andthe pinion f to the cam-gear D'. This cam-gear is caused to make onecomplete revolution from the position shown in Fig. 10, the cam d inconnection with said gear operating the compressor mechanism in theusual way. 0n the completion of the revolution the tripping mechanismwill come to a position in which it will intercept the trip-stop pawl J,and simultaneously with the engagement of the said trip-stop and pawlthe roller h will pass over the crest d2 of the cam d. lt necessarilyfollows, of course, that the clutchgear must rotate sufficiently afterthe pawl J impinges the trip-stop to disengage the driving-dog I. Suchdisengagement is eifected by both the driving-dog and pawl movingtogether froma position as indicated in Fig. 1 to a position asindicated in Fig. 10 or to n a position intermediate of those shown inFigs. 9 and l0. After reaching the position shown in Fig. 10 thedriving-dog remains fixed relative to the gear-clutch B', on which itismounted. Further rotation of the said gear-clutch is made possible bythe yielding connection between the pawl and the driving-dog. The virtueof the invention lies largely in this provision for additional movementof these parts, for becauseof such provision vfor additional movementthe clutch-gear is made to rotate further, thus causing the camgear torotate further and also preventing the disengagement of the driving-doguntil afterthe roller h is in its locked position on the cam d of thecam-gear D. This additional movement will bring the parts to theposition shown in Fig. 9, the roller h being carried past its normallocking position and the pawl J engaging the rear stopft'2 on thedrivingdog. Thespring K will then cause the gearclutchrto retreatslightly'lfuntil the several parts occupy their normal, lockedpositions,

as shown in Fig. 10. If the resistanceoifered to the binding mechanismexceeds the inertia effect of the moving parts, th'en'A itis evidentthere will be no shock or jar` incident to the said moving parts Cof,the binder coming home or to theirjl'ocked position- On the contrary,howevelguifthe inertiaf'eifect of the moving parts shouldefzbrceedtheresistance offered thereto, as is frequently the case in straightgrain, then there would lie a tendency to produce a shockfjout thespring K,.v

acting on the pawlJ, operates asa c'shion'lto absorb the'eects of suchsle'ck,

What I claim as my invention, and desire to secure by Letters Patent,is-l 1. In abinder-drivingmechanism,tripping.

mechanism, a trip-stop in connection therewith, a constantly-rotatingdriving-shaft, av

driving dog pivotally secured to said elutchgear, a trip-stop-engagingpawl pivotally se'- cured to and yieldingly held in relation with saiddriving-dog and having a limited vibratory movement relative thereto,the said tripstop-engaging pawl adapted to engage the trip-stop on thesaid tripping mechanism and by such engagement to force the saidbinderdriving dog to a non-engaging position relative to thebinder-driver, all combined substantially as described.

2. In a binder-driving mechanism, tripping mechanism, a trip-stop inconnection there- Y with, a constantly-rotating driving-shaft, abinder-driver rigidly secured thereto,a clutchgear loosely sleeved uponsaid shaft, a binderdriving dog pivotally secured to 'said clutchgear, atrip-stop-engaging pawl pivotally secured to and yieldingly held inrelation with saiddriving-dog and having a limited vibratory movementrelative thereto, the said pawl adapted to contact the trip-stop on thesaid tripping mechanism, such contacting operating to disengage thebinder-driving dog from said binder-driver and permit of aslightcontinnedv rotation of the latter, all combined substantially asdescribed. p

3. In a grain-binder in combination, a camgear, and a cam integraltherewith, compressllO ing mechanism actuated by said cam and op-ferating as a lock therefor, means for actuating the said cam-gear andcam from the binderdriving mechanism, a tripping device, and a binderdriving mechanism having the trip- .stop-engaging portion of thedriving-dog yieldingly secured'relative to said dog, thereby enablingthe said binder-driving mechanism to drive the cam-gear slightly beyondits normal locked position before theA binderdriverY becomes disengagedfrom its operating member substantially as described.

4. In a grain-binder in combination, a camgear, and a. cam integraltherewith, compressing mechanism actuated by said cam and operating as alock therefor, means for actuating the said cam-gear and cam from thebinderdrivingvmechanism, a tripping device, and a binderdrivingmechanism having the tripstop-engaging portion of the driving-dogpivoted upon and yieldingly secured relative to said dog, therebyenabling the said binderdriving mechanism to drive the cam gear slightlybeyond its normal locked position before the binder-driver becomesdisengaged from its operating member substantially as described.

5. In agrain-binder in combination, a camgear, a cam as one piecetherewith, a binderdriving mechanism having in connection therewith atwo-part driving-dog with an interposed actuating-spring, means foractuating the said cam-gear from the binder-driving mechanism, trippingmechanism, a compressing device having a roller acting as a stopinconjunction with the cam on said camgear, the said ltwo-part driving-dogand its actuating-spring permitting the said cam and cam-gear to bedriven slightly beyond their normal locked position relative to the stopon the compressing device and to then cause the said cam-gear andassociated parts to retreat to their normal locked position,substantially as described.

CHARLES A. ANDERSON RAND. In presence of- MARY TRIEB, J. C. WARNES.

